What is the inner layer of the heart called?
A. pericardium
B. myocardium
C. endocardium
D. epicardium
Answer: C
You might also like to view...
Which of the following statements about the impact of motorcycle helmet usage is TRUE?
A) Helmet use moderately increases the incidence of cervical spine injury. B) Helmet use moderately decreases the incidence of cervical spine injury. C) Helmet use substantially decreases the incidence of cervical spine injury. D) Helmet use neither increases nor decreases the incidence of cervical spine injury.
Which of the following BEST describes the compartment syndrome?
A) A serious condition caused by the bleeding and swelling from a fracture or crush injury that becomes so strong that the body can no longer perfuse the tissues against that pressure B) A life-threatening condition caused by trapping the blood flow by a fracture when the bone ends cut the blood vessels C) A serious condition caused by the amount of equipment that must be carried in the ambulance compartments D) A non-life-threatening condition caused by orthopedic injuries in which blood flow is stopped when the bone ends compress the blood vessels
For an externally rotated AP oblique knee projection, the
1. leg is externally rotated until an imaginary line connecting the femoral epicondyles is at a 45-degree angle with the IR. 2. leg is internally rotated until an imaginary line connecting the femoral epicondyles is at a 45-degree angle with the IR. 3. central ray is aligned parallel with the tibia plateau. 4. central ray is centered at a level 0.75 inch (2 cm) distal to the medial femoral epicondyles. a. 1 and 4 only b. 1 and 3 only c. 2 and 4 only d. 1, 3, and 4 only
Which of the following describes the Moro reflex?
A. The neonate opens his or her arms wide, spreads his or her fingers, and seems to grasp at something after being startled B. When the sole of the foot is stroked with a blunt object, the big toe lifts upward and the other toes fan outward. C. When something touches a neonate's cheek, he or she instinctively turns his or her head toward the touch. D. An infant's heart rate decreases secondary to hypoxia because he or she depends heavily on the heart rate to perfuse the body.